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Angle-insensitive structural colours based on metallic nanocavities and coloured pixels beyond the diffraction limit.

ABSTRACT: To move beyond colorant-based pigmentation display technologies, a variety of photonic and plasmonic crystal based structures have been designed and applied as colour filters. Nanostructure based colour filtering offers increased efficiencies, low power consumption, slim dimensions, and enhanced resolution. However, incident angle tolerance still needs to be improved. In this work, we propose a new scheme through localized resonance in metallic nanoslits by light funneling. Angle insensitive colour filters up to ±80 degrees have been achieved, capable of wide colour tunability across the entire visible band with pixel size beyond the diffraction limit (~?/2). This work opens the door to angle insensitive manipulation of light with structural filtering.

SUBMITTER: Wu YK

PROVIDER: S-EPMC3561620 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Angle-insensitive structural colours based on metallic nanocavities and coloured pixels beyond the diffraction limit.

Wu Yi-Kuei Ryan YK Hollowell Andrew E AE Zhang Cheng C Guo L Jay LJ

Scientific reports 20130201

To move beyond colorant-based pigmentation display technologies, a variety of photonic and plasmonic crystal based structures have been designed and applied as colour filters. Nanostructure based colour filtering offers increased efficiencies, low power consumption, slim dimensions, and enhanced resolution. However, incident angle tolerance still needs to be improved. In this work, we propose a new scheme through localized resonance in metallic nanoslits by light funneling. Angle insensitive col ...[more]

PMID: 23378925

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